Volume 48, 1915
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IV. Chemistry and Physics.
| Art. XLVIII. | Investigation into the Resistance of Earth Connections. By L. Birks, B.Sc., M.Inst.C.E., M.I.E.E., and Eric Webb, Lieut. R.E. (A.I.F.) | 464–481 |
| XLIX. | Resistance to the Flow of Fluids through Pipes. By E. Parry, M.I.E.E., Assoc.M.Inst.C.E. | 481–489 |
| LIII. | The Distribution of Titanium, Phosphorus, and Vanadium in Taranaki Ironsand. By W. Donovan, M.Sc. | 503–507 |
| LV. | Studies on the Lime Requirements of certain Soils. By Leonard J. Wild, M.A., F.G.S. | 513–517 |
| LVI. | Studies on the Chemistry of the New Zealand Flora: Part V— The Chemistry of Podocarpus totara and Podocarpus spicatus. By T. H. Easterfield and J. C. McDowell, B.Sc. | 518–520 |